| Thomas Mayne | |
| Birth Date: | 14 November 1893 |
| Birth Place: | Belfast, Ireland |
| Death Place: | Belfast, Northern Ireland |
| Position: | Scrum-half |
| Repyears1: | 1921 |
| Repcaps1: | 3 |
| Reppoints1: | 0 |
Thomas Mayne (14 November 1893 — 23 January 1961) was an Irish international rugby union player.
One of four rugby playing brothers, Mayne competed for North of Ireland in his native city and was capped three times for Ireland as a scrum-half in the 1921 Five Nations, which included a win over Scotland.[1]
Mayne worked for a shipping communications company and was committee chairman of the North of Ireland club.[2]